A5027918718- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Organic Chemistry Cycloaddition Reactions
- Organoselenium and organotellurium chemistry
- Synthesis and Characterization of Heterocyclic Compounds
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Synthesis and biological activity
- Crystal structures of chemical compounds
- Porphyrin and Phthalocyanine Chemistry
- Crystallography and molecular interactions
- Synthesis and Reactions of Organic Compounds
- Sulfur-Based Synthesis Techniques
- Chemical Reaction Mechanisms
- Fluorine in Organic Chemistry
- Synthesis and Biological Evaluation
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Organometallic Compounds Synthesis and Characterization
- Chemical Synthesis and Reactions
- Organic and Inorganic Chemical Reactions
- Synthesis of Tetrazole Derivatives
- Chemical Synthesis and Analysis
- Quinazolinone synthesis and applications
- Synthesis and Catalytic Reactions
- Oxidative Organic Chemistry Reactions
- Electrochemical Analysis and Applications
Nizhny Novgorod State Pedagogical University
2015-2025
Nizhny Novgorod State Technical University
2015-2025
Ivanovo State University
2005-2021
National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
2013-2021
"VNIINM" named after AA Bochvar
2014-2019
Ivanovo State University of Chemistry and Technology
2012-2019
Vologda State University
2019
Yaroslav-the-Wise Novgorod State University
2005-2016
State Research Institute for Chemistry and Technology of Organoelement Compounds
2015
State Research Center for Applied Microbiology and Biotechnology
2014
2-Pyridylselenyl halides undergo facile coupling with a triple CN bond of unactivated nitriles.
New complex compounds (I-III) synthesized by successive reactions of sodium 1-(2-chlorophenyl)-1H-tetrazole-5-thiolate (NaL1) with cadmium chloride and dimethyl sulfoxide or o-phenanthroline. Successive 1-(2-methoxyphenyl)-1H-tetrazole-5-thiolate (NaL2) o-phenanthroline gave complexes (IV, V). The structure the obtained was studied 1H, 13C NMR, UV-Vis spectroscopy elemental analysis. Moreover, crystal (I-III/V) determined single X-ray diffraction supramolecular assembly explored through...
Chalcogenodiazoles have been intensively studied in recent years the context of their supramolecular chemistry. In contrast, newly discovered cationic 1,2,4-selenodiazole building blocks, which can be obtained via coupling between 2-pyridylselenyl halides and nitriles, are virtually unexplored. A significant advantage latter is facile structural tunability variation could allow a fine tuning self-assembly solid state. Here, we explore influence substituent (which derives from nitrile)...
The synthesis and structural characterization of a series supramolecular complexes bicyclic cationic pyridine-fused 1,2,4-selenodiazoles with various anions is reported. binding trifluoroacetate, tetrachloroaurate, tetraphenylborate, perrhenate, pertechnetate in the solid state regarded. All interact selenodiazolium cations exclusively via pair “chelating” Se⋯O H⋯O non-covalent interactions, which make them an attractive, novel, non-classical recognition unit or synthon. Trifluoroacetate...
In this study, we report the first example of acyclic (amino)(N-pyridinium)carbenoid gold(III) complexes synthesized via a coupling reaction between 2-pyridylselenyl chloride and Au(I)-bound isonitriles. The involves an initial oxidative addition Se-Cl moiety to Au(I), followed by nucleophilic pyridine fragment isonitrile's C≡N bond, furnishing metallacycle. Importantly, is acting as nucleophile towards metal-bound Arguably, such due chelate effect. structures carbenoid were unambiguously...
The synthesis and structural characterization of α-haloalkyl-substituted pyridinium-fused 1,2,4-selenadiazoles with various counterions is reported herein, demonstrating a strategy for directed supramolecular dimerization in the solid state. compounds were obtained through recently discovered 1,3-dipolar cycloaddition reaction between nitriles bifunctional 2-pyridylselenyl reagents, their structures confirmed by X-ray crystallography. α-Haloalkyl-substituted exclusively formed dimers via...
Previous investigators have shown that, at high pressure, Re is a good capsule material and that Fe loss to under these conditions minimal (e.g., Herzberg Zhang 1997). We present here the first systematic low-pressure study of loop stability from silicate melts loops as function off 0r Experiments were performed 1400 ℃ one bar pressure over range f O₂. For O₂ values low QFM-2, was found be negligibly small, even for charge/loop ratio only about 2. According our calculations, same conditions,...
A novel [3+2] cycloaddition reaction between 2-pyridylselenyl halides or trifluoroacetates and isocyanates is described herein. This new convenient methodology allows the synthesis of 3-oxo-1,2,4-selenodiazolium scaffolds, which are inaccessible by known methods. The coupling proceeds efficiently for a broad scope substrates under mild conditions preparation cationic salts in high yields. mechanism was analyzed using DFT calculations, evidencing concerted nature reaction. Se-containing...
The synthesis of 2-pyridyltellurenyl bromide via Br2 oxidative cleavage the Te–Te bond dipyridylditelluride is reported. Single-crystal X-ray diffraction analysis demonstrated that Te atom was involved in four different noncovalent contacts: Te⋯Te interactions, two Te⋯Br ChB, and one Te⋯N ChB contact forming 3D supramolecular symmetrical framework. In contrast to 2-pyridylselenenyl halides, congener does not react with nitriles furnishing cyclization products. 2-Pyridylselenenyl chloride...
Supramolecular chemistry of chalcogenadiazoles is attracting an increasing attention due to its applications in materials chemistry. Chalcogen bonding allows a fine-tuning the self-assembly and, therefore, modulation physical properties when these compounds are employed. Here, we report facile preparation broad scope 1,2,4-selenadiazoles via coupling 2-pyridylselenenyl halides with unactivated nitriles, that represent novel type supramolecular building blocks which eagerly engage variety...
New unsymmetrical monoterpenylhetaryl disulfides based on heterocyclic and monoterpene thiols were synthesized for the first time in 48-88% yields. Hydrolysis of with fragments methyl esters 2-mercaptonicotinic acid was carried out 73-95% The obtained compounds evaluated antioxidant, antibacterial, antifungal activity, cytotoxicity mutagenicity.
Herein, we describe a novel coupling between ambiphilic 2-pyridylselenyl reagents and nitriles featuring an active α-methylene group. Depending on the solvent employed, this reaction can yield two distinct types of cationic pyridinium-fused selenium-containing heterocycles, 1,3-selenazolium or 1,2,4-selenadiazolium salts, in high yields. This is contrast to what observed before for other nitriles. Notably, formation selenadiazolium reversible, gradually converting into more thermodynamically...
A practical method for the synthesis of 2-selenoxo-1,2,3,4-tetrahydro-4-quinazolinone was reported. The latter compounds were found to undergo facile oxidation with H2O2 into corresponding diselenides. Novel organoselenium derivatives characterized by 1H, 77Se, and 13C NMR spectroscopies, high-resolution electrospray ionization mass spectrometry, IR, elemental analyses (C, H, N), X-ray diffraction analysis several them. heterocycles exhibited multiple remarkable chalcogen bonding (ChB)...